How Good is the iPhone 4’s “Retina Display” Really?

June 9, 2010, By Radimir Bobev

The head of DisplayMate Technologies, Dr Raymond Soneira, has recently made some statements regarding the iPhone 4 and its new display with the revolutionary claims about it made by Apple. The company run by Dr Soneira develops software designed to test monitors, so we’d take his words quite seriously – let’s see what he had to say precisely.

In his statement, the doctor explained how the human eye works, and why statements that the iPhone 4’s display can show images that seem perfect to it can’t be true. After some small calculations, it turns out that at a 12 inches distance, the phone has to offer a 477 pixels per inch resolution in order to display such an image; going at 8 inches you get 716 ppi, and at 18 inches it reaches an acceptable 318 ppi at last.

Still, according to him, the phone’s display is one of probably the best mobile display on the market that’s being developed, and it will still be worth seeing it and getting your hands on it.

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